Home / 1,017,890.40-1,525,863.60-378,022.80

Finding the Fourth Proportional to 1,017,890.40, 1,525,863.60 and 378,022.80

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Solution

The fourth proportional to 1,017,890.40, 1,525,863.60 and 378,022.80 is: 566,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,890.40 : 1,525,863.60 = 378,022.80 : x
  2. Step 2: Convert to fraction form
    1,017,890.40/1,525,863.60 = 378,022.80/x
  3. Step 3: Cross multiply
    1,017,890.40x = 1,525,863.60 × 378,022.80
  4. Step 4: Simplify right side
    1,017,890.40x = 576,811,230,490.08
  5. Step 5: Solve for x
    x = 576,811,230,490.08/1,017,890.40
  6. Step 6: Final answer
    x = 566,673.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.